Storage-battery electrode or plate



C. AMBHUSTEP..

STORAGE BATTERY LECTRODE OR PLATE. APPLICATION FILED SEPT. 4. 191B.

CORNELIUS AMBRUs'iEB, or nosLYN, PENNSYLVANIA.

STORAGE-BATTERY ELECTRODE 0R PLATE.

i,354,ose.

Specification of Letters Patent.

Patented Sept. 28, 1920.

Application led'September 4, 1918. Serial No. 252,529.

To all whom it may concern.'

Be it known that l, CORNELIUS AM- BRUSTER, a lcitizen of the United States, ref siding at Roslyn, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Storage-Battery Electrodes or Plates, of which the following is a specification.

rlhe end construction of plates or electrodes which include metal rods surrounded by active material or material adapted to become active inclosed in insulating ribbed and perforated tubes, has been improved by the use of a-pouredend-connecting bar, but drops of metal escaped from the mold in which the end bar was cast and remained upon the surface of the tubes and these drops of metal were detrimental -to the proper operation of the battery.

The principal object of the present invention is to avoid these drops of metal and to improve the end construction both as. a finished product andin respect to the `fac1l ity of its manufacture.

The' invention will be claimed at the end hereof but will be lirst described in connecs tion with the accompanying drawings forming part hereof and in .which Figure 1 isan elevational view of a plate or electrode embodying features of the invention. l

Fig. 2 is a bottom plan ofthe same.

Fig'. 3 is a transverse sectlon drawn to an enlarged scale Iindicating also a moldand Figs. 4 and 5 are sections respectively on the' lines d -d and 5-5 of Fig; 3.

ln the drawings l, are metal rods surrounded with active material or material adapted to become'active, 2. 3, is a poured end connecting bar, meaning that it is formed in the mold'indicated at 4, in Fig. 3, and thus made and attached to -the plate at one operation. When the metal lspoured the position of the parts shown in Fig. 3, 1s

of course inverted. 5, are'ribbed and slotted insulating tubes inclosing the material 2, and provided at their ends with ribless cuffs 6 adapted to fit cylindrical mold cavities and s o prevent the escape of molten metal, even if the ends of the cuffs are at different levels. These cuffs may be slotted as shown at the left in F ig. 1, or imperforate as shown-at the right in said figure, but they are ribless. Were the cuffs provided' with ribs commercial production ofthe plates -would be greatly hampered since the slots in the mold to receive the ribs must be of eX- actly fitting dimensions to prevent escape of the molten metal, entailing a great eXpen diture of time in fitting each tube in its recess in the' mold and further'increasing the diculty of operation since a tube is likely to shift (being semi-elastic) while the others are being placed, so preventing the proper closing of the mold, engendering crushing of the ends of the misplaced tubes and permitting leakage of the molten metal.

urthermore since the slightly varying lengths a short tube in a Y recessed'mold would result in a continuation of the projecting rib in the metal casting which being a conductor instead of an insulator is not permissible. v

The ribless cuff at the end of the tube, by permitting the use ofa mold with ribless cavity overcomes all the diiiculties enumerated above.

l claim:

lin a storage battery plate'or electrode, in-

l cluding metal rods surrounded by active material or material adapted to become active,

and in combination therewith, a poured end connectingbar, and ribbedand slotted insulating tubes inclosing said material and providedat their ends with ribless cuffs adapted to lit corresponding mold cavities, substantially as described.

ooRNELiUs anaausran.

tubes may be of, 

